We've been doing this in So. Cal. for years now! If you keep your vehicle maintained, and do any general maintenance before you test, you still shouldn't have a problem passing.Make sure you always check your oxygen sensors and your cats. They fail more cars than any other parts on your engine. /forums/images/icons/laugh.gif It may start out costing more but competition will eventually bring the price down. We have places down here that do it for $19.00 + cert.

<font color="green"> My truck is a federally smogged vehicle, no cats or AIR, no sensors on it either since it's a '78. Anyone know if there's a limit to how big of tires they will run on the treadmill? I have also heard that they can't do all wheel drive vehicles, maybe I can throw some drive flanges in it and tell them it's a full time 4wd truck. /forums/images/icons/smirk.gif </font color>

<font color="green"> I wonder how it would do on 31s with 5.13s? /forums/images/icons/tongue.gif Couldn't be that much more load on the engine than there is at idle. Could be real sneaky and remove the front shaft and pop the t-case in low when you pull into the test station, then there would really be a light load on the engine. /forums/images/icons/grin.gif </font color>

Well all this talk about smog this and smog that is making me even more thankfull of the no smog on my blazer....HE HE /forums/images/icons/smile.gif /forums/images/icons/smile.gif /forums/images/icons/smile.gif /forums/images/icons/smile.gif

It definitely depends on the shop, the biggest I've run were 36" inch tires, but I've never had the opportunity to try to run bigger!! /forums/images/icons/wink.gif /forums/images/icons/laugh.gif Also one thing we check for is to make sure the truck is not in 4wheel drive. And no we can't do full time 4wheel drive vehicles the new way. We still do them the old way(2 speed idle).

Yeah that is the way I smogged mine even though I had the driveshaft out and locked the trans, I told him it was a full time and he did the old test.
By the way if you have low gearing and put it in low, it will be worse because you will have to drive it up to 25 mph, that will put you in hi RPMs.
I still like my diesel better, no smog even for the ater models, and you acn always convert them to gas, and still never smog them /forums/images/graemlins/smile.gif
IceMan

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